Codelist Issue 58 for ONIX 3.0 has been released.* Complete listings of the ONIX codelists in PDF and HTML formats can be downloaded from the EDItEUR website:

Issue 58 stand-alone codelist documentation as readable PDF or HTML file (open and read it in your web browser)
Issue 58 TXT, CSV, XML, JSON files for loading into your data management applications
Issue 58 XSD, RNG, DTD schema modules for use with existing XML schema files (but note that it is better to download the latest 3.0.8 schemas since they incorporate a couple of small improvements as well as the new Block 8)
The ‘strict’ XSD 1.1 with Issue 58 (the strict XSD must be updated each time there is a new issue of the codelists, as It includes some codelists within the XSD itself)
The online browser for the ONIX code lists at ns.editeur.org/onix has been updated to issue 58

Need help finding and using the documentation? Read this.

It should go without saying that everyone should review the document summarizing the changes and update their systems, but we've highlighted some changes of particular note for you below.

List 21 Edition type

Addition of new code ETR to indicate an “easy-to-read edition” for books that use highly simplified wording, clear page layout, and typography to ensure the content can be understood by those with intellectual disabilities. Visit this website for guidelines.

List 22 Language role

Creation of new codes to identify language information:

Code: 13
Label: Language of introduction/end matter
Note: Use for the language of any introductory text, prologue, etc., or epilogue, end matter, etc., where it's different from the language of the main text.

Code: 14
Label: Target language of teaching/learning
Note: E.g. for the book ‘Ingles para latinos’, English. For phrasebooks and language teaching and learning material. Wherever possible, the target language should also be listed as the subject of the book.

Code: 15
Label: Additional vocabulary/text in this language
Note: Use of significant words, phrases, quotations, or short passages, from a language other than the main language of the text as an integral part of the text. This does not include 'loanwords', academic Latin, etc.

*A note to ONIX 2.1 users

ONIX 2.1 users should note that codelist updates no longer apply to ONIX 2.1 and users should continue to use Issue 36. ONIX 3.0 code lists and schema modules no longer contain codes or lists unique to ONIX 2.1. You can still obtain the correct ONIX 2.1 schema and codelists from the Archived Previous Releases page.

BookNet Canada still recommends that you use and periodically update your copy of EDItEUR's best practices guide. It’s an essential ONIX 3.0 guide, but much of the information in it applies equally to ONIX 2.1.